Was It Common For Dodge 1500 To Have A Different Front Diff From The Rear

Why do the front and rear tires of a car have different pressures?

Tyre pressure on a family car depends on the load in the car - I mean passengers. On a car with no passengers and only the driver, the weight on the front tyres may be more because of the engine weight. On a small car the engine weight could be around 150 kg and on an SUV it might be 300 kg. We will take examples of rear-wheel drive cars.Most cars have the fuel tank in the rear. Small cars have capacities of around 40 litres whereas SUVs may take up to 65 litres of fuel. The specific gravity of Diesel is 0.90 or so, therefore a full tank of fuel may weigh around 36 Kg on a small car and about 60 kg on an SUV. With passengers in the car - 3 in a compact car and 5 in an SUV - the weight on the tyres is more - anywhere between 200 and 300 kg. And then there is luggage in the trunk.Considering all this, the tyre pressure in the rear is kept higher than the front. Added advantage of extra pressure on the rear tyres is lesser tyre wear.Image courtesy of Tyre MaintenanceSo if there is a full compliment of passengers and luggage, it is recommended to pump up the rear tyres to compensate - otherwise it will amount to under-inflation. If it is only the driver without any load, then equal pressure on all tyres is also OK.

How much does a rear differential cost to get replaced?

As everyone here says, you dont give enough info to answer accurately. To start though, for every model car there has been published a suggested time for a competent mechanic in a shop to r+r (remove and replace) or otherwise service all the parts in a car, that information also gets collected and put into aftermarket books available online. You can start by calling a dealer for the car you have and asking the book time to do the job- that will be a number of hours- that you multiply by the hourly rate to get a cost. I see 4 hrs mentioned, that is by no means standard across all models!As differential gears usually last the life of a car, buying the assembly used is likely a reasonable option, swapping out the whole unit is usually a much less technically demanding job that can be accomplished by casual mechanics, correctly assembling and shimming the internal gears should be done by an experienced shop.I see some have answered assuming it is a solid axle car, lots of modern cars have IRS (independent rear suspension), so the hours of required labor needed are all over the place.

If the size of the front tires is less than the rear tires then what will happen?

Nothing. It depends on smaller in which dimension. If they front tires are narrower, then that is referred to as a “staggered setup” and most Porsche 911s have that setup. If the diameter of the front wheels are smaller, like 18″ and the rear wheels are larger 19″ then that effects the “stance” of the car and helps the car handle better. In this picture, the front wheels are 18″ and the rears are 19″ diameter. The fronts are also 9″ wide and the rears 10″ wide.

Does a broken front axle mean I totalled my car?

This truly depends on how much more damage has been done to your car besides the broken front axle. Front drive axles do break occasionally through no fault of the driver, and when they do, they rarely damage any other parts of the car unless you are traveling at a pretty good clip. Most often, one of the constant velocity joints will strip out and leave you needing a way to get back home. The last time I had to replace a front drive axle, the parts, used from a salvage yard, cost less than fifty dollars, and the time involved amounted to maybe two hours. Now, if you have been involved in a collision and broke a front axle, there is a good chance you broke a number of other things as well, and the chances of your car being totaled have gone up. By how much, I can’t say, as I haven’t seen the damage involved.

How much does it cost to repair/replace a rear axle in a car?

Cost of replacement of rear axle in the car depends on what all parts you need and what car it is. The reason for this is that in most modern cars the axle is not a single part as it used to be and it is unlikely that you will need to replace all the parts. Most cars now a days have front wheel drive and rear axle is most likely twist beam type of axle and some of them have independent rear suspension systems. In both cases there might be one or more parts that need not be replaced. Also it is to be observed that mostly rear axles are maintenance free. It is mostly replaces in case of underbody impacts. You can visit mahindrafirstchoiceservices.com to know more

Why are a truck's back wheels usually concave, while the front wheels are usually convex?

Most of them had given the right answer.Actually its the Rim of the wheels which looks different.They serve some purpose.First question is why the wheels rims need to bulge out , Nate Waddoups has given the answer. They house Disk brakes or drum brakes + Steering knuckles.Rear wheels commonly used to have 4 wheels Two each on same axle. To bear heavy loads as each tire has its own load limits.The problem is that both wheels should be attached to same hub ( part where wheels are mounted ).So the wheel rims are made to overlap each other. So the wheels hub mounts at center of both wheelsActually the wheels rims are same as the front , the thing is they are fit facing opposite to each other. So that the can have same kind of spare tires.Anther advantage is that both Rims and hub are bolted at same plane , its good for load transfer , else each wheel need to mounted at different plane.That is how things get mounted. Same set of lug nuts can tighten both wheels. So this geometry suits when a set of tires are required to be mounted.From Engineering point of view its bit bad to mount wheels other than above geometry else the load will not be equally to each tires ( ie Inner tire will be loaded heavily).